<template>
  <div class="app-container">
    <el-form
      :model="queryParams"
      ref="queryForm"
      size="small"
      :inline="true"
      v-show="showSearch"
      label-width="68px"
    >
      <el-form-item label="分类名称" prop="name">
        <el-input
          v-model="queryParams.name"
          placeholder="请输入分类名称"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="是否显示" prop="showStatus">
        <el-select
          v-model="queryParams.showStatus"
          placeholder="请选择是否显示"
          clearable
        >
          <el-option
            v-for="dict in dict.type.sys_show_hide"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button
          type="primary"
          icon="el-icon-search"
          size="mini"
          @click="handleQuery"
          >搜索</el-button
        >
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery"
          >重置</el-button
        >
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['product:category:add']"
          >新增</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="info"
          plain
          icon="el-icon-sort"
          size="mini"
          @click="toggleExpandAll"
          >展开/折叠</el-button
        >
      </el-col>
      <right-toolbar
        :showSearch.sync="showSearch"
        @queryTable="getList"
      ></right-toolbar>
    </el-row>

    <el-table
      v-if="refreshTable"
      v-loading="loading"
      :data="categoryList"
      row-key="catId"
      :default-expand-all="isExpandAll"
      :tree-props="{ children: 'children', hasChildren: 'hasChildren' }"
    >
      <el-table-column label="分类名称" prop="name" />
      <el-table-column label="层级" align="center" prop="catLevel" />

      <el-table-column
        label="操作"
        align="center"
        class-name="small-padding fixed-width"
      >
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['product:category:edit']"
            >修改</el-button
          >
          <el-button
            size="mini"
            type="text"
            icon="el-icon-plus"
            @click="handleAdd(scope.row)"
            v-hasPermi="['product:category:add']"
            >新增</el-button
          >
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['product:category:remove']"
            >删除</el-button
          >
        </template>
      </el-table-column>
    </el-table>

    <!-- 添加或修改商品分类对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="分类名称" prop="name">
          <el-input v-model="form.name" placeholder="请输入分类名称" />
        </el-form-item>
        <el-form-item label="父分类id" prop="parentCid">
          <treeselect
            v-model="form.parentCid"
            :options="categoryOptions"
            :normalizer="normalizer"
            placeholder="请选择父分类id"
          />
        </el-form-item>
        <el-form-item label="层级" prop="catLevel">
          <el-input v-model.number="form.catLevel" placeholder="请输入层级" />
        </el-form-item>
        <el-form-item label="是否显示" prop="showStatus">
          <el-radio-group v-model="form.showStatus">
            <el-radio
              v-for="dict in dict.type.sys_show_hide"
              :key="dict.value"
              :label="parseInt(dict.value)"
              >{{ dict.label }}</el-radio
            >
          </el-radio-group>
        </el-form-item>
        <el-form-item label="排序" prop="sort">
          <el-input v-model.number="form.sort" placeholder="请输入排序" />
        </el-form-item>
        <el-form-item label="图标地址" prop="icon">
          <el-input v-model="form.icon" placeholder="请输入图标地址" />
        </el-form-item>
        <el-form-item label="计量单位" prop="productUnit">
          <el-input v-model="form.productUnit" placeholder="请输入计量单位" />
        </el-form-item>
        <el-form-item label="商品数量" prop="productCount">
          <el-input
            v-model.number="form.productCount"
            placeholder="请输入商品数量"
          />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {addCategory, delCategory, getCategory, listCategory, updateCategory,} from "@/api/product/category";
import Treeselect from "@riophae/vue-treeselect";
import "@riophae/vue-treeselect/dist/vue-treeselect.css";

export default {
  name: "Category",
  dicts: ["sys_show_hide"],
  components: {
    Treeselect,
  },
  data() {
    return {
      // 遮罩层
      loading: true,
      // 显示搜索条件
      showSearch: true,
      // 商品分类表格数据
      categoryList: [],
      // 商品分类树选项
      categoryOptions: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 是否展开，默认全部展开
      isExpandAll: false,
      // 重新渲染表格状态
      refreshTable: true,
      // 查询参数
      queryParams: {
        name: null,
        showStatus: null,
        productCount: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        name: [{ required: true, message: "请输入分类名称", trigger: "blur" }],
        parentCid: [
          { required: true, message: "请选择父分类id", trigger: "change" },
        ],
        catLevel: [
          { required: true, message: "请输入层级", trigger: "blur" },
          {
            validator: (rule, value, callback) => {
              if (value === "" || value === null || value === undefined) {
                callback(new Error("请输入层级"));
              } else if (!Number.isInteger(Number(value))) {
                callback(new Error("请输入整数"));
              } else if (Number(value) < 1 || Number(value) > 10) {
                callback(new Error("请输入1-10之间的数字"));
              } else {
                callback();
              }
            },
            trigger: "blur",
          },
        ],
        showStatus: [
          { required: true, message: "请选择是否显示", trigger: "change" },
        ],
        sort: [
          { required: true, message: "请输入排序", trigger: "blur" },
          { type: "number", message: "请输入数字类型", trigger: "blur" },
        ],
        icon: [{ required: true, message: "请输入图标地址", trigger: "blur" }],
        productUnit: [
          { required: true, message: "请输入计量单位", trigger: "blur" },
        ],
        productCount: [
          { required: true, message: "请输入商品数量", trigger: "blur" },
          { type: "number", message: "请输入数字类型", trigger: "blur" },
        ],
      },
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询商品分类列表 */
    getList() {
      this.loading = true;
      listCategory(this.queryParams).then((response) => {
        this.categoryList = this.handleTree(
          response.rows,
          "catId",
          "parentCid"
        );
        this.loading = false;
      });
    },
    /** 转换商品分类数据结构 */
    normalizer(node) {
      if (node.children && !node.children.length) {
        delete node.children;
      }
      return {
        id: node.catId,
        label: node.name,
        children: node.children,
      };
    },
    /** 查询商品分类下拉树结构 */
    getTreeselect() {
      listCategory().then((response) => {
        this.categoryOptions = [];
        const data = { catId: 0, name: "顶级节点", children: [] };
        data.children = this.handleTree(response.rows, "catId", "parentCid");
        this.categoryOptions.push(data);
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        catId: null,
        name: null,
        parentCid: null,
        catLevel: null,
        showStatus: null,
        sort: null,
        icon: null,
        productUnit: null,
        productCount: null,
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    /** 新增按钮操作 */
    handleAdd(row) {
      this.reset();
      this.getTreeselect();
      if (row != null && row.catId) {
        this.form.parentCid = row.catId;
      } else {
        this.form.parentCid = 0;
      }
      this.open = true;
      this.title = "添加商品分类";
    },
    /** 展开/折叠操作 */
    toggleExpandAll() {
      this.refreshTable = false;
      this.isExpandAll = !this.isExpandAll;
      this.$nextTick(() => {
        this.refreshTable = true;
      });
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      this.getTreeselect();
      if (row != null) {
        this.form.parentCid = row.catId;
      }
      getCategory(row.catId).then((response) => {
        this.form = response.rows;
        this.open = true;
        this.title = "修改商品分类";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate((valid) => {
        if (valid) {
          if (this.form.catId != null) {
            updateCategory(this.form).then((response) => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addCategory(this.form).then((response) => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      this.$modal
        .confirm('是否确认删除商品分类编号为"' + row.catId + '"的数据项？')
        .then(function () {
          return delCategory(row.catId);
        })
        .then(() => {
          this.getList();
          this.$modal.msgSuccess("删除成功");
        })
        .catch(() => {});
    },
  },
};
</script>
